I am running IE 7.0.5730.13 at work and everytime I hit the back button, I have to sign up again. It also happens when I try to post a reply to a post. I've lost inumerous long answers to threads... Is anyone else having this issue?

Well, at work I'm stuck on IE7... it's sporadic, it comes and goes... for some reasons some threads I can't reply at work, so I use my fone when that happens... the day I posted this it happened all day at work... no biggie, If I see a pattern to it, I'll let you guys know...